Published:Journal of Chromatographic Science,
ISSN 0021-9665Volume 37, Number
12, December 1999, pp. 457-461
Effect
of Plant Matrix and Fluid Ethanol Concentration on Supercritical Fluid Extraction
Efficiency of Schisandrin Derivatives
Youngleem
Kim, Young Hae Choi, Young-Won Chin, Young Pyo Jang, Young Choong Kim, Jinwoong
Kim, Jin Yeol Kim, Seung Nam Joung, Min Jeong Noh, and Ki-Pung YooAn
investigation of the effect of plant matrix on the supercritical fluid extraction
efficiency of five schisandrin derivatives is reported, exhibiting a great difference
with respect to extraction efficiency depending on the matrix. Pure supercritical
CO2 at 60°C and 34.0 MPa cannot fully recover schisandrin derivatives from
the leaves as much as from the other matrices. Only 36.9% of these compounds are
extracted from leaves of Schisandra chinensis by supercritical CO2 in comparison
with organic solvent extraction. However, more than 80% of schisandrin derivatives
are obtained from both stem and fruit parts. Ethanol addition also shows a different
effect depending on plant matrix; that is, CO2 modified with 10% ethanol could
enhance the yield of schisandrin derivatives from leaves by four times when compared
with that of pure CO2, but it has little effect on both stems and fruits.
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